How to Get Rid of Pool Foam: A Guide by AQUASTRONG

If you notice that your pool water has a persistent layer of foam that just won’t disappear, you may be dealing with pool foam. While small bubbles are normal, especially from return jets, when these bubbles gather and linger, they can cover the pool's surface in unsightly foam. Thankfully, removing pool foam is easy, and with a few preventive steps, you can keep your pool clear and inviting.

What Causes Pool Foam?

Pool foam usually results from an excess of organic material in the water. This causes the water to "thicken" and trap air bubbles, creating foam that remains on the surface. Here are some of the common causes:

1. Personal Care Products

Everyday items like shampoo, conditioner, lotions, deodorants, and hair products can leave residues in the pool, contributing to foam. Even minimal product buildup from swimmers can lead to pool foam over time.

Solution: Shock the pool to break down these contaminants, returning the water to its usual clarity.

Prevention: Encourage swimmers to rinse off thoroughly before getting in the pool, especially if they have hair products or lotions on.

2. High Bather Load

The more people in the pool, the more contaminants like sweat, body oils, and trace residues from personal products build up. High bather load can quickly turn a clear pool into a foamy one.

Solution: Superchlorinate the pool after heavy use to eliminate organic matter.

Prevention: Implement a quick rinse-off rule for anyone wanting to swim to minimize the buildup of residues.

3. Soap and Detergents

Residues from soap and laundry detergents on swimsuits or from freshly washed bodies can contribute to foamy pool water. Even after rinsing, traces of soap and other chemicals can linger on the skin or clothing.

Solution: Shock the pool with chlorine or an oxidizing shock to remove these residues.

Prevention: Use fragrance-free, gentle detergents for swimsuits, and avoid using fabric softeners that may leave unwanted chemicals behind.

4. Imbalanced Pool Chemistry

Chemical imbalances, especially low calcium levels, can create a soft-water environment, which can lead to foam. Additionally, poor-quality pool chemicals may cause foaming issues if they contain too many fillers or improper ingredients.

Solution: Test your pool water and balance it accordingly. Use a reliable liquid or strip testing kit to monitor levels.

Prevention: Keep calcium levels within the recommended range, depending on your pool type, and use only high-quality, trusted pool chemicals. AQUASTRONG offers a complete line of pool chemicals that maintain water quality without unwanted side effects.

5. Improper Algaecide Usage

When used incorrectly or in excess, algaecide can thicken the water and lead to foam. This commonly happens if algaecide is added when algae aren't present or if too much is added.

Solution: Allow the foam to dissipate naturally, or skim the foam off to speed up the process.

Prevention: Use algaecide only when needed and in proper amounts, especially products that contain polyquat 60, as it is less likely to produce foam.

Fast Solutions for Pool Foam

If you’re facing a time crunch and need a quick fix for foam, consider using an anti-foam agent. These water-based solutions are ideal for temporarily removing foam without affecting your water chemistry. However, it's essential to remember that anti-foam agents only mask the foam and won’t address the root causes.

Maintaining a Foam-Free Pool

Pool foam isn’t inevitable. With regular water balancing, quality pool chemicals, and a few good habits, you can keep your pool water foam-free. AQUASTRONG recommends frequent water testing, quality pool maintenance routines, and high-grade pool products for consistent results.